47Maintenance and troubleshootingPower module failureFixed power module failureThe S5130-30S-HI and S5130-54S-HI switches use fixed power modules, and support three powerinput modes: AC input, RPS DC input, and concurrent AC and RPS DC inputs.Look at the system status LED and the RPS status LED of the switch to identify power system failure.Table 9 Description for the power failure indication LEDsLED Mark Status DescriptionSystemstatusLEDSYS Off The switch is powered off.RPSstatusLEDRPSSteady green The AC input is normal, and the RPS is in position or operatingcorrectly.Steady yellow RPS power input is normal, but AC input has failed or AC input isnot connected.Off No RPS is connected.AC input• SymptomThe system status LED is off.• SolutionTo resolve the issue:a. Verify that the AC power cord is securely connected to the switch, and the AC-input powerreceptacle on the switch and the connected AC power source are in good condition.b. Verify that the external AC power system is operating correctly.c. Verify that the operating temperature of the switch is in an acceptable range, and the powermodule has good ventilation. Over-temperature can cause the power module to stopworking and enter protection state.d. If the issue persists, contact H3C Support.RPS DC input• SymptomThe system status LED or RPS status LED is off.• SolutionTo resolve the issue:a. Verify that the switch is securely connected to the RPS.b. Verify that the RPS is operating correctly.c. Verify that the operating temperature of the switch is in an acceptable range, and the powermodule has good ventilation. Over-temperature can cause the power module to stopworking and enter protection state.d. If the issue persists, contact H3C Support.
